P0472 Dodge Code - Exhaust Pressure Sensor Low
Quick Answer
The Exhaust Back Pressure (EBP) sensor is a variable capacitance sensor that, when supplied with a 5-volt reference signal from the Engine Control Module (ECM), produces a linear analog voltage signal that indicates pressure. Common causes include Faulty Exhaust Back Pressure Sensor, Exhaust Back Pressure Sensor harness is open or shorted, Exhaust Back Pressure Sensor circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0472 Dodge indicates Exhaust Pressure Sensor Low.
- Common causes
- Common causes include Faulty Exhaust Back Pressure Sensor, Exhaust Back Pressure Sensor harness is open or shorted, Exhaust Back Pressure Sensor circuit poor electrical connection.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
Code P0472 Dodge Description
The EBP sensor's primary function is to measure exhaust back pressure so that the ECM can control the exhaust back pressure regulator (EPR) when needed.
What are the Possible Causes of the DTC P0472 Dodge?
- Faulty Exhaust Back Pressure Sensor
- Exhaust Back Pressure Sensor harness is open or shorted
- Exhaust Back Pressure Sensor circuit poor electrical connection
How to Fix the DTC P0472 Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0472 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0472 Dodge Code
1. What are the common symptoms of OBDII code P0472 in a Dodge related to the Exhaust Pressure Sensor Low?
The common symptoms of OBDII code P0472 in a Dodge include decreased engine performance, reduced fuel efficiency, and potentially an illuminated Check Engine Light.
2. What are the possible causes of OBDII code P0472 indicating Exhaust Pressure Sensor Low in a Dodge?
Possible causes of OBDII code P0472 in a Dodge are a faulty exhaust pressure sensor, damaged wiring or connectors in the sensor circuit, or exhaust system blockages.
3. How can I diagnose OBDII code P0472 related to the Exhaust Pressure Sensor Low in my Dodge?
To diagnose OBDII code P0472 in a Dodge, you can use an OBDII scanner to retrieve the trouble code, visually inspect the exhaust pressure sensor and its wiring, and perform a pressure test on the exhaust system.
4. Can a clogged diesel particulate filter (DPF) cause OBDII code P0472 in a Dodge?
Yes, a clogged diesel particulate filter (DPF) can cause OBDII code P0472 in a Dodge by affecting the exhaust pressure readings and triggering the low-pressure sensor signal.
5. How should I repair OBDII code P0472 related to the Exhaust Pressure Sensor Low in my Dodge?
Repairing OBDII code P0472 in a Dodge involves replacing the faulty exhaust pressure sensor, repairing any damaged wiring or connectors, and addressing any exhaust system blockages, such as a clogged DPF.
6. Is it safe to continue driving my Dodge with OBDII code P0472 indicating Exhaust Pressure Sensor Low?
It is not recommended to continue driving your Dodge with OBDII code P0472 present, as it can lead to further damage to the engine and exhaust system components.
7. Can resetting the OBDII code P0472 in my Dodge make the issue go away temporarily?
Resetting the OBDII code P0472 in a Dodge may temporarily turn off the Check Engine Light, but the underlying issue causing the code will still need to be addressed to prevent further problems.
8. How much does it typically cost to repair OBDII code P0472 related to the Exhaust Pressure Sensor Low in a Dodge?
The cost to repair OBDII code P0472 in a Dodge can vary depending on the exact cause of the issue, but it generally ranges from $150 to $400 for parts and labor.
9. Can a DIY enthusiast without much experience fix OBDII code P0472 in a Dodge themselves?
While some DIY enthusiasts may be able to replace the exhaust pressure sensor or address wiring issues causing OBDII code P0472, it is recommended to consult a professional mechanic for proper diagnosis and repair.
10. How often does OBDII code P0472 related to Exhaust Pressure Sensor Low occur in Dodge vehicles?
OBDII code P0472 related to Exhaust Pressure Sensor Low can occur in Dodge vehicles with diesel engines, particularly in models equipped with exhaust pressure sensors as part of the emissions control system.
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